Fluctuation-response relations for nonequilibrium diffusions with memory
Statistical Mechanics
2013-09-23 v3 Mathematical Physics
math.MP
Abstract
Strong interaction with other particles or feedback from the medium on a Brownian particle entail memory effects in the effective dynamics. We discuss the extension of the fluctuation-dissipation theorem to nonequilibrium Langevin systems with memory. An important application is to the extension of the Sutherland-Einstein relation between diffusion and mobility. Nonequilibrium corrections include the time-correlation between the dynamical activity and the velocity of the particle, which in turn leads to information about the correlations between the driving force and the particle's displacement.
Cite
@article{arxiv.1211.2181,
title = {Fluctuation-response relations for nonequilibrium diffusions with memory},
author = {C. Maes and S. Safaverdi and P. Visco and F. van Wijland},
journal= {arXiv preprint arXiv:1211.2181},
year = {2013}
}